J 2012

The effects of methamphetamine self-administration on behavioural sensitization in the olfactory bulbectomy rat model of depression

KUČEROVÁ, Jana, Jana PISTOVČÁKOVÁ, Dagmar VRŠKOVÁ, Ladislav DUŠEK, Alexandra ŠULCOVÁ et. al.

Basic information

Original name

The effects of methamphetamine self-administration on behavioural sensitization in the olfactory bulbectomy rat model of depression

Name in Czech

Vliv operantní autoaplikace metamfetaminu na behaviorální senzitiaci v potkaním modelu deprese navozené olfaktorickou bulbektomií

Authors

KUČEROVÁ, Jana (203 Czech Republic, guarantor, belonging to the institution), Jana PISTOVČÁKOVÁ (203 Czech Republic, belonging to the institution), Dagmar VRŠKOVÁ (203 Czech Republic), Ladislav DUŠEK (203 Czech Republic, belonging to the institution) and Alexandra ŠULCOVÁ (203 Czech Republic, belonging to the institution)

Edition

The International Journal of Neuropsychopharmacology, New York, Cambridge University Press, 2012, 1461-1457

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30000 3. Medical and Health Sciences

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 5.641

RIV identification code

RIV/00216224:14740/12:00059286

Organization unit

Central European Institute of Technology

UT WoS

000309740200011

Keywords (in Czech)

metamfetamin; operantní autoaplikace; olfaktorická bulbektomie; deprese; potkan Wistar

Keywords in English

methamphetamine; IV Self-administration; olfactory bulbectomy model; depression; Wistar rats

Tags

Tags

International impact, Reviewed
Změněno: 7/4/2013 13:03, Olga Křížová

Abstract

V originále

Depression is frequently comorbid with a drug addiction and may seriously complicate its treatment. Currently, there is no routinely used animal model to investigate this comorbidity. In this study the effect of repeated administration of methamphetamine on i.v. drug self-administration in an olfactory bulbectomy model of depression in rats was investigated in order to propose and validate a rat model of comorbid depression and addiction. Male Wistar rats were either olfactory-bulbectomized (OBX) or sham-operated. They subsequently underwent a methamphetamine sensitization regime, which consisted of daily i.p. injections of methamphetamine for a 14-d period; controls received Sal injections at the same frequency. The i.v. self-administration of methamphetamine (0.08 mg/kg in one infusion) paradigm on a fixed ratio schedule of reinforcement was performed using operant chambers. A significant decrease of the drug intake was recorded in sham-operated animals pretreated with methamphetamine when compared to the unpretreated group. This was not apparent in the OBX groups. Both groups of OBX animals exhibited a higher intake of methamphetamine compared to the corresponding sham-operated groups, thus confirming the hypothesis of higher drug intake in depressive conditions in this rodent model. The procedure of behavioural sensitization to methamphetamine decreased the number of self-administered drug doses per session in the sham-operated rats. It is hypothesized that this phenomenon resulted from increasing efficacy of the drug after behavioural sensitization caused by repeated methamphetamine intermittent administration.

Links

ED1.1.00/02.0068, research and development project
Name: CEITEC - central european institute of technology
MSM0021622404, plan (intention)
Name: Vnitřní organizace a neurobiologické mechanismy funkčních systémů CNS
Investor: Ministry of Education, Youth and Sports of the CR, The internal organisation and neurobiological mechanisms of functional CNS systems under normal and pathological conditions.

Files attached